Browse Publications Technical Papers 2015-01-1972
2015-09-01

Development of 3.5L V6 Gasoline Direct Injection Engine - ESTEC 2GR-FKS/FXS - 2015-01-1972

The new 2GR-FKS / FXS engines were developed to achieve stringent fuel economy and emission targets and respond to recent innovations in the field. The major parts of the 2GR-FKS/FXS engines were re-designed based on the well-received dynamic performance and fuel economy aspects of the 2GR-FE engine. The aims of this development were as follows.
  1. 1
    Best-in-class power performance
  2. 2
    Environmental performance that maximizes thermal efficiency and complies with fuel economy and emission regulations in each country by a wide margin
  3. 3
    Engine response typical of V6 engines through drastic weight reduction of moving parts
To achieve these conflicting aims, the developed engines use a modified version of the D-4S fuel injection system, which enables selective use of direct and port injection, in addition to advanced technologies such as variable valve technology (VVT) with a mid-position lock system and an exhaust port cooling system.

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